﻿using System;
namespace FirstProgram
{
    public class Firstclass
    {
        //this's my first class
        public void Print()
        {
            Console.WriteLine("Hello C#！");
        }

    }

    public class Secondclass
    {
        //this's my second class
        public void Print()
        {
            Console.WriteLine("Hello World！");
        }
    }
}